Firmware update gone wrong

I tried to update to the latest firmware which failed now my device can not boot. Cant factory reset with the G28 to VIN method. Get the following repeated in the console when I connect to the serial port. Is it recoverable?

You need to connect GND to G23 on the expansion board. When you do that you should see the following on the serial terminal (press the reset button on the module to make sure you get this message as you won't see it when you open the terminal program after plugging in the USB cable):